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The jar was round upon the ground And tall and of a port in air.
圆圆的坛子置在地上,高高地立于空中。
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Or if they hit the ball in the air and they're caught, they're out.
或者他们在空中击球，并且被抓到了，他们就出局了。
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He's a man up in the air you know he's so detached he doesn't have his feet on the ground.
他是个生活在空中的人,十足超然,从不脚踏实地。
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It goes up, stays in the air for a very long time, but it falls on your head.
它先上升 在空中停留很长时间,但是它会直接落在头上
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You see how long you are in the air and the whole time you are in the air, you are traveling horizontally at this speed.
你可以知道在空中停留的时间,当你在空中运动的时候,你一直以这个水平速度在运动
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That means, if you are going in a plane and you throw something up in the air, it seems to be going up and down to you.
也就是说,如果你在飞机中,你向空中扔出一物体,它也许会相对于你上下运动
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That's how long you are in the air.
那就是在空中停留的时间
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This says, if you want to be in the air for a long time, so you may think that 90 degrees is the best angle.
也就是说,如果你想在空中停留更久,你也许会认为 90°是最佳选择
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